lainiefig
Cathlete
Stephanie already mentioned that "effect" can be a verb:
You were right, it is "affect." Here's a great explanation from the Writers' Block Web site:
Affect and effect are two words that are commonly confused.
"Affect" is usually a verb meaning "to influence".
The drug did not affect the disease.
"Effect" is usually a noun meaning "result".
The drug has many adverse side effects.
"Effect" can also be used as a verb meaning "to bring about".
The present government effected many positive changes.